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objslice: Support arbitrary objects start, stop, and step.

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Older int-only encoding is not expressive enough to support arbitrary slice
assignment operations.
This commit is contained in:
Paul Sokolovsky
2014-05-25 01:39:27 +03:00
parent 7a4ddd2428
commit afaaf535e6
5 changed files with 42 additions and 38 deletions
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10
py/vm.c
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@@ -768,12 +768,12 @@ unwind_jump:
if (unum == 2) {
obj2 = POP();
obj1 = TOP();
SET_TOP(mp_obj_new_slice(obj1, obj2, NULL));
SET_TOP(mp_obj_new_slice(obj1, obj2, mp_const_none));
} else {
obj1 = mp_obj_new_exception_msg(&mp_type_NotImplementedError, "3-argument slice is not supported");
nlr_pop();
fastn[0] = obj1;
return MP_VM_RETURN_EXCEPTION;
mp_obj_t obj3 = POP();
obj2 = POP();
obj1 = TOP();
SET_TOP(mp_obj_new_slice(obj1, obj2, obj3));
}
DISPATCH();
#endif